Securing your Firefox browser requires defense-in-depth to block malicious extensions, scripts, and trackers from scraping your browsing history. Malicious “sleeper extensions” can bypass initial web store checks and actively spy on user data. You can counter these history-spy tools by auditing add-ons, restricting tracking scripts, and locking down deep browser settings. Audit and Restrict Extensions
Verify active add-ons: Navigate to about:addons to view all installed browser extensions.
Purge unused tools: Remove any extension that is not strictly necessary to minimize your attack surface.
Trust official channels: Download add-ons exclusively from the official Mozilla Add-ons Store.
Leverage automatic blocking: Keep Firefox updated so Mozilla can automatically disable known malicious extensions globally.
Scan locally: Run a closed-browser deep scan using trusted security tools like Malwarebytes to catch background spyware. Maximize Privacy Settings YouTube·DistroTube How To Secure The Firefox Browser
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